Expired, full termArchive
Multiply recorded hologram for security
US 5,319,476 A · Assignee: Dai Nippon Printing Co., Ltd. · Inventors: Yamazaki; Satoshi et al.
Overview
The published document from the USPTO: abstract, claims, description and drawings. Open it full size
Read the whole patent
Listed from its USPTO record in Patent Yard's full-term archive. Its claims, description and drawings are in the USPTO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed January 8, 1993 and granted June 7, 1994. A patent filed before June 8, 1995 lasts 17 years from grant or 20 from filing, whichever is longer, so its term ended January 8, 2013.
- Any extension is capped at five years, so it can't still be in force.
- We haven't checked its US family, and a later related patent could still be in force. We check US rights only.
FiledJanuary 8, 1993
GrantedJune 7, 1994
Term endedJanuary 8, 2013
Application number08/002200
Classification (CPC)G06K7/12 +2 more
Length4 pages
Timeline
Timeline From USPTO dates
Sources & verification
Official USPTO records
Cross-check elsewhere
Everything on this page comes from the USPTO record linked above.